Assume that an ArrayList of integers named a has been declared and initialized . Write a single statement that assigns a new value to the first element of the ArrayList. The new value should be equal to twice the value stored in the last element of the ArrayList.
LANGUAGE: JAVA
CHALLENGE:
Assume that an ArrayList of integers named a has been declared and initialized . Write a single statement that assigns a new value to the first element of the ArrayList. The new value should be equal to twice the value stored in the last element of the ArrayList.
SOLUTION:
a.set(0, a.get(a.size() – 1) * 2);